Some hope is better than no hope.
I know a couple who have an extremely shy daughter in her late 20s. She cant really talk to anyone apart from a few old sisters in the congregation.
The old couple have hope she will snap out of it and marry one day, or at least live a relatively normal life where she doesn’t need to hide behind her mum.
they have tried everything they can think of even expert doctors and therapists now all they have is some hope.
this may be a poor example but many of us still physically in the JWs still have a bit of hope that there is a God and the promises in the Bible may have some truth to them even though the JWs interpreted them wrong.